Eyeleting-machine



(No Mdel. J. S. SHANNON. BYELETING MACHINE.

No. 344,997. Patented July 6, 1886.

' and claimed, and illustrated in the annexed NITED- STATES PATENTOFFICE.

JAMES s. sHANNoN, or CHICAGO, ILLINOIS.

EYELETlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 344,997, dated July 6,1886. Application filed October 12, 1885. Serial No. 179,628. (Nomodel.)

To all whom it may concern.-

Be it known that I, JAMES S. SHANNON, of Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Eyeleting-Punches; and

I do hereby declare that the following is a,

thereon, which form a part of this specifica.

tion.

This invention'relates to improvements in punching mechanisms in whichtwo or more dies or punches are employed in connection wit-l1 a matrixconsisting of a perforated bed,

upon which the sheets of paper or other mate rial to be perforated aresupported,and through which portions of the material are forced by thedies or punches, so as to form the required perforations. The double ormultiple punch, which is herein illustrated, and. which is included insaid class of punching mechanisms, is more especially designed forforming several eyeletholes simultaneously through a number of sheets ofpaper; and my-improvenienttherein consists of certain novel features ofconstruction and combination, hereinafter described drawings, in whichFigure 1 is a top plan viewof my improved mechanism with a portion ofthe operating? lever broken away at one edge in order to more clearlyillustrate a spring-plate below the same. Fig. 2 is a transverse sectionon line 00 x of Fig. 1. Fig. 3 is a section taken through the same online 3 y of Fig. 1.

On the drawings, A denotes a suitable tablet or base, to which issecured the bed A of the punching mechanism. The bed consists of a metalplate, which is preferably formed so as to bearupon the tablet or base Aat three points--namely, the middle and the front and rear end edges ofthe plate constituting the said bed. This configuration of the bed-plateprovides certain raised portions-in the bed, and also a space below thesame, for purposes which will be hereinafter set forth.

The dies or punches B pass through and are rigidly secured to a bent orcurved springplate, 0, which is supported at one end on the bed A, andat its remaining upper free end adapted to overhang the said bed. Thepunches are set in a line parallel with and adjacent to the endedgeofthe plate at its upper free end,

which said plate at its rear end curves downwardly, and is provided witha pair of arms, 0, which are secured upon a raised portion, a, of thebed.

The short rods, which constitute the dies or punches, extend both aboveand below the spring-plate O, and to provide an increased bearing forthe punch or die rods, and more effectively hold them in rigidconnection with upon the die or punch rods by a hand-lever,

D, has been removed. This hand-leveris pivoted at one end between a pairof standards or upturned cars, a, which rise from the bedplate, andwhich are conveniently formed in one piece with the latter. Thehand-lever is hung or pivoted back of the set of dies or punches, and isat such end made of a width sufficient to cause it to bear upon the topends of all of the punch or die rods when it is swung forward and overthe dies or punches, as in dotted lines in Figs. 1 and 2. From its saidwide pivoted end the lever is preferably tapered to its remaining freeend, so as to adthebed-plate is provided with apertures a through whichportions of the paper are forced by the dies or punches, and in whichthe dies or punches are received'when they are brought to thetermination of their downstroke. This perforated portion of thebed-plate constitutes astationary matrix for the movable dies orpunches, and also serves as a bed or seat for the paper or othermaterial to be punched.

The stripper E consists of a plate, which is perforated for the passageof the dies or punches and supported at one end by the spring-die orpunch-carrying plate 0. The spring-plate constituting the stripper is,by preference, provided at its rear end with a pair of arms, 0, whichare secured to the under'side of the arms of the spring-plate O. Thestripper-plate is bent or curled up and back along its front edge, as at0, so as to extend over the front edge of the spring-plate which carriesthe dies or punches.

\Vhenthe frceend oft-hespring-dieorpunchcarrying plate is in its normalraised position, its front edge will bear againstthe under side of thebent lip e of the stripper-plate, which latter will assume its normalposition below the spring-plate to an extent sufficient to leave an openspace between the two plates and above the matrix to an extent whichwill leave a clear space sufiicient for the papers to be punched. Whenthe free end of the springplate carrying the dies or punches isdepressed, the stripper-plate will move simultaneously therewith untilthe st ripper- -ilate is arrested by the resistance of the papers orinaterialto be punched. The papers or other material will then be heldupon the bed or matrix by the stripper-plate, while the de scending diesor punches will pass through the stripper-plate and the material underthe same and force portions of the paper or other material through theholes in the matrix. During such time as the stripper remains stationaryand the spring-plate O and its dies or punches descend the spring-platewill be forced down against the resistance of a spring, F, which isarranged between the said spring-plate and the stripper. This springconsists of a flat bent spring, which is perforated so as to permit thedies or punches to work freely through it. After the paper or othermaterial has been punched. and the dies or punches have been relievedfrom the down pressure, the spring F, which during the downstrokc of thedies has been compressed or forced against its inherent elasticity will,during the upward movement of the free end of the spring-plate C, serveto maintain the stripper down upon the paper or other material, so as tohold the same,

. and in effect strip it from the ascendimg dies This action of thespring F con-.

or punches. tinues until the spring is permitted to regain its normalcondition, at which moment the dies or punches will have cleared thepaper or other material and their lower ends have been retracted withinthe openings through the stripper.

G indicates a gage, which is arranged to slide on the base or tablet Ain position for determining the proper position of the paper or othermaterial relatively to the punches, and also forassisting in bringingthe edges of a number of sheets flush with one another. This gageconsists simply of an angular plate having a flat base portion,connected with the base A by a sliding c0nnectionsuch as a couple ofstuds, 9, passing through a slot, 9, in the plate and secured in thebase or tablet A. The remaining portion of the gage consists of anupturned end, 9, rising from one end of the base portion, 9, and adaptedto stand against the edge or edges of the material which is to bepunched.

What I claim as my invention is- 1. In an eyeleting-punch, thecombination, with a stationary matrix, of a series of dies or punches, aspring-plate sustaining said dies or punches in position for engagementwith the matrix and normally free from the latter, and a pivoted leverlocated in position to bear upon the upper ends of all of the dies orpunches, whereby the latter may be simultaneously operated,substantially as described.

2. The combination, with a stationary ma trix, oftwo or more diesorpunches, B, aspri'ng plate sustaining the said dies or punches overthe matrix, and normally free from the latter, and a pivoted leverlocated in position to bear upon the upper ends of all ot'the dies 9 orpunches, said dies or punches being socured to the said spring-plate, soas to extend both above and below the latter, substantially asdescribed.

3. Thecombination,with thedies orpnnches B, and a spring-plate, O,sustaining said dies or punches, ot' a perforated stripper, E, securedto the said spring-plate, a spring interposed between the spring-plateand the stripper, and a lever. D, pivoted in position to engage the topends of the said dies or punches, substantially as described.

4. The combination, with a bed-plate, A,

perforated to form a matrix, of a spring-plate secured at one end tosaid had plate, a series of dies or punches attached to the free edge ofthe spring-plate in position to engage the perforations of the matrix, aperforated strip. per, E, secured to the spring-plate at a point betweenthe free and secured ends of said spring-plate, a perforated leaf-springinter posed between the spring-plate and stripper, and a pivoted leverbearing upon the upper ends of all of the said dies or punches,substantially as described.

5. The combination, with the spring-plate 0, provided at its free edgewith a set of dies or punches, of a bed-plate provided with ele vatedportions a a, the former providing a seat for the secured end of thespring-plate, and the latter being perforated to form a ma trix forengagement with the said dies or punches, substantially as described.

In testimony that I claim the foregoing as my invention I affix mysignature in presence of two witnesses.

Vitnesses: JAMESS. SHANNON.

M. E. DAYTON, H. N. HIBBARD.

